Really nice and sweet chapter.

For the changes... HOLY SMOKE! And I believe that you forgotten Issei's swimsuit details.
Well, Asia in canon was beginning to learn some stuff from Issei's secret stash along Xenovia and Irina.

So you put it to an end to this prequel already? What about the whole beginning of the Excalibur Arc?

BTW, there's a DxD genderbend one-shot, you may find something to be inspired. Highschool DxD: GB Drabble Series

Yey! The end to the prequel! Now, up to the main story!

I'm gonna miss this one though...

Cute chapter, i can't wait to see the fight, good work.

loved it.

Thanks I'm honoured.

We got a glance of a certain black cat woman that came early. Here's a suggestion; what if Issei declares herself as Koneko's older sister?

So specials, huh? Since is only genderbend Issei in this, I'm guessed that the situations would be different, like Issei would get caught by the udon, Koneko's victim and the beach.

loved it.

Go for it Yuuto, do it for Issei.
Honestly I won't like seeing Yuuto being posses, doing weird movements and having perverted expressions; not like Yuuto.

Here's a suggestion; for the second curse, we all know that Issei-possesed got kiss on the cheek by accident. Sooo, before getting to the kiss part, how about giving Umayma a playfull side by teasing Yuuto. Now for the kiss; she could suggest him to kiss her anywhere if she saw how nervous he is, first she suggest the cheek, the forehead or the hand, then went on suggesting the neck or... any part of her body if he wishes to. Teasing him by saying that he may be a male Devil but he's also young meaning that he's at the age.

Another suggestion; what if Issei apologizes Yuuto for everything he went through to help her.

I know I asked this before, but after watching the latests episodes of DxD Hero; how are you going to make a difference in both your genderbent and Her Knight stories, you know about the whole (stupide) Oppai Dragon. With that kind of fetish fem!Issei has, I doubt you would call her something like Chest Dragon Empress... or... Bulge Dragon Empress (oh god). I once suggested you an alternative way to activate Issei's Balance Breaker, you know have Issei being kiss on the neck; canon Issei activates by poking Rias' boobs and unlocking his true powers with the same method, kissing on the neck is all I could think of.
And I hope you could come up with something that replace the Oppai Dragon song for both series, or coming up two. For Her Knight; it could be something about hot boyfriend and love, maybe a Sailor Moon vibe into it.

In fact, you know how the canon DxD universe has a tokusatsu show know as Breast Dragon Emperor Oppai Dragon staring Issei as a main character and the fact that there is a Sailor Moon live action version show that's also Tokusatsu, so how about a show that's similar yet different with a mahou shoujo twisted?

If I couldn't know better, I say you probably making Fem!Issei and Yuuto's relationship like Issei and Rias'. Well, not exactly, but I noticed one thing that's similar to one another, I don't like to reveal spoilers but, I noticed how Fem!Issei address Yuuto by his last name and seeing the latest episodes about IsseixRias relationship lately I would say she'll keep calling him that until a big event. Did I got it all right?

Quote cute chapter, i can't wait to see your return on your main story. Keep up the good work and see you soon.

God I don’t know why big breasts r awesome men find’em sexy but women who r naturally big busted don’t like’em i’m a 42D and I have to wear a regular bra and sports bra to hold’em up I can’t lay on my back to long and I can’t lay on my stomach and the best part is when I’m menstruating they swell up and r tender as hell I get that girls that r permanently stuck being an Acup or Bcup want to feel sexy with a bigger bust because of certain clothes but honestly I wouldn’t want mine to get any bigger then they r

Oh yeah, there's something that I like to ask;
How are you going to manage the S4? With how things that went in the new season, I can tell that you might make a lot of changes since your making a genderbend version, such as the school field trip event with the closet and the new upgrade, then there's the tension between Issei and Rias; a girl like Rias I could understand why she act but what will a male would act?

Well, you did great, almost a inch of Death the Kid's outburst rapid fire. And I was expecting Issei to say it out loud about the fruits.

The lunch was good but would have been better if it was the other way around, you know Issei making lunch for him.

So the next OVA is 'Observing the Devils' Woks'. And I could imagine Issei being utterly shocked by the misunderstanding statement of Yuuto's client and believe that he had done it.
Hopefully is with that genderbend mummy, cause honestly I can see the possessed Yuuto doing all the weird movements and try to earn a kiss and trying rubbing on Akeno's assets.

And Issei's outburst has kinda gives me an idea; what if there was someone that mocks her about her undeveloped body and small breasts, and if going to far, she'll lash out. You know, that'll wound her feminine pride.

Great

I've been wondered about Clothing break.

Good idea, the Chimera Breast accident and Observing the Devil Works OVAs.

Now I may have some suggestions, and questions.
With the Chimera OVA, what if Issei gets pissed off as well after hearing what the alchemist Devil about small breasts. She'll shoot rounds of arrows in rapid fire, like Death the Kid with the Pharaoh.
Then after it was defeated, she soon went in dimiss realized that the fruits were also destroy, she and Asia and Koneko could have eaten those to grow bigger chest in the process.
For the Devil works, are we going to see the same male mummy or the female mummy from your gender bend story?

Long! I like long reader! Thank!