Luigi smiled as Tatsumaki slowly floated down to where he was sitting atop the Hero Organization HQ, in a spot he'd arranged to not have an active camera for the next hour. It had been surprisingly easy to arrange that, as he'd simply requested the spot for 'private meditation without observation', though he was restricted to only an hour before the cameras would be reactivated. He supposed that given his performance - and being trained alongside Genos, and possibly his connection to Sensei - the Hero Organization considered his presence more effective than security cameras. He picked up the laptop he'd brought for this as Tatsumaki - to his surprise - chose to settle in his lap, despite past protests to sitting there when there were other places to sit conveniently available. "Umm...?" he began, uncertain how he should voice an inquiry.

"One spot of green up here will draw less attention from anyone watching than two," she explained dryly, though with an odd lilt to her words he found difficulty properly identifying. "Besides, this way we don't have to jockey for the keyboard."

"Ah, that-a makes sense," Luigi allowed as he set the laptop in her lap, opening it up to the chat client. "Log in to your messenger, and we'll set to work on it."

Nodding, Tatsumaki moved to the chat client to sign in. Luigi looked away while she entered her password, only looking back when he felt the light tug on his head that was her powers giving him the nudge to do so. He then rested his hands over hers on the keyboard. "Alright...how would you normally address her?"

Tatsumaki frowned. "Well...normally I'd just say 'Hey, Sis!' or 'Oy!' if I was feeling extra irritable...but somehow I don't think she'd believe that from me even if it is from my client..."

"Hmm..." Luigi whuffed air lightly through his mustache. "Was there a time you two talked more often than you do now?"

Tatsumaki was silent for a time. "...yeah..." she finally replied, somewhat sadly.

"How did you talk to her then?" he inquired.

"Well...I often teased her about how well she 'bloomed' before it became clear I wasn't going to," the green haired girl answered, her tone shifting from amused to rueful.

Luigi lifted one hand to rub his chin thoughtfully...somewhat confused that Tatsumaki leaned into his arm as he did so. "How about this?" he asked as he typed away.

Oy, Okiimouto-chan!

Tatsumaki stifled a snort in response to the word play. "Yeah, that's actually something I used to call her when we lived together!" she offered happily...only for her joy to fade somewhat as her eyes shadowed.

"Then it's not something anyone else would-a know," Luigi deduced, moving along so Tatsumaki wouldn't have time to get down. "What do you want to say next?"

Tatsumaki leaned back, wriggling into his lap as she looked up at him, the back of her head pressed into his chest. "Well...I should probably explain why I'm writing to her. Where the idea came from, and all that." She frowned suddenly. "But...not too many details..."

Luigi raised an eyebrow at that, but decided not to question it. Instead, he typed away.

Someone I know to give sound advice suggested that talking to you over email before a face-to-face meeting might keep the damage to important things - like our feelings, the infrastructure, and any passing bystanders - to a minimum.

Seeing her giving him a rather significant look, he quickly added another line.

He seems to think you have a temper. Wonder where he got that idea?

He relaxed as he saw that left her more conducive to equanimity. "So what do you want to say first?" he asked gently. "As far as what you want to tell her this way?"

Tatsumaki thought about that for a time. "Well...we do have a hard time talking face to face..." She paused as Luigi got to typing.

Still, there are things I've been wanting to tell you, to talk to you about...but it doesn't seem to come out right. Hopefully I can be clearer this way. It is giving me time to look at my words before I send them.

"How does that look, Maki-chan?" he asked gently.

Tatsumaki looked it over for a time. "Looks good so far. Now...how should I start?" She looked up at him. "How do you normally talk to your brother if you need to get a message across?"

"With a lot of bawling and stuttering," Luigi joked, though it wasn't too far from the truth. Seeing Tatsumaki stifle a giggle, he continued more seriously. "Though if you're trying to get her to read the whole thing and think about it...I'd-a start with something good, then fill in the negative, then end on a heartfelt note."

"Sounds like a plan," Tatsumaki allowed. "Should probably start with how proud I am of her, then..."

Smiling, Luigi began typing away.

First, I'm so proud of how far you've come stepping out on your own. You've taken the powers you have, and done more with them than anyone might have reasonably expected or believed. Your skill is nothing less than phenomenal, and I know you can handle yourself in most situations, which is a load off my mind.

Tatsumaki smiled sadly as he typed that. "And...that leads into my worry about her...relying on others so much..."

Nodding, Luigi tapped away as he tried to shape the message without being confrontational with the words.

But it adds another worry. As strong and skilled as you are, you aren't indomitable. You have your weaknesses, and your limits...and you cover for them by gathering many others of your strength level to work with you as a group. You rely on them. You...trust them. And...I fear what that trust might lead to if it was betrayed. I can too easily imagine someone taking advantage of and betraying your trust, and you being hurt, killed...or worse.

Luigi blinked in surprise as Tatsumaki added 'or worse' to what he'd typed. He looked down at her in concern. "...Maki-chan?"

Tatsumaki closed her eyes, her whole body still. Not knowing what else to do, Luigi held the computer steady with one hand while wrapping her in a comforting embrace with his other arm. She burrowed into the embrace, plainly seeking comfort in the moment. After a time, she stirred back out of the embrace. "...thank you..." she said softly.

"Any time you need, Maki-chan," he promised warmly.

She smiled up at him, a warm, gentle, frighteningly vulnerable smile, one that had probably not been seen on her face in years, or even decades. It made her breathtakingly beautiful. As he felt his cheeks redden, he saw a hint of wicked smugness touch the smile, which told him she was feeling more herself again. Turning back to the computer, she typed the next paragraph.

And that's why I get so aggressive when I talk to you about that. Because as much as we butt heads, as much as we get on each others' nerves and exasperate each other to no end...you're my sister, and I love you...and my world would be shattered if I lost you. I won't try to cage or chain you just to ease my worries...but I'll never stop worrying.

"H-how's that look?" she asked nervously.

Luigi smiled down at her. "Almost as beautiful as you," he offered teasingly, stifling his own chuckle at the rosy tint that touched her cheeks. "Now, how would you sign it?"

"...sign?" Tatsumaki asked, confused.

"Sum the whole thing up and let her know who sent it again, and the meaning of the message," Luigi explained.

Tatsumaki thought about that for a time, then typed.

What else are sisters for?

Luigi smiled warmly. "That looks wonderful," he told her proudly.

Smiling, she gave the whole message one last look...and then clicked 'Send'.