My Childhood Friend Dazai Keeps Testing the Limits of My Need for Control Every Day [Anime Crossover]

...So I really am a pretty awful person after all.

Though in this life, I have tried hard to keep myself in check when dealing with my troublesome childhood friend.

But...

Looking at my childhood friend Dazai, who had tried to hang himself again, been taken down by me, and then clung to me, I felt rather conflicted.

"I told you not to get so close. Aren't you worried I'll react on instinct and throw you into the river?" I calmly pushed away his slightly chubby cheek as he rubbed against me, speaking with cold indifference.

"Could you really do that to me?" He looked at me pitifully, clasped his hands to his chest, and struck a coy pose like Xi Shi holding her heart. His body wriggled bonelessly like a noodle, and he let out fake sobs, all thunder and no rain. "You don't love me anymore. Come on, tell me, is there another cat out there?"

Me: ...

Is this what people in the real world mean when they talk about losing their minds?

A perfectly standard cross-shaped vein slowly appeared on my forehead.

"Shut up already." Black fumes began to rise slowly from me, and my smile grew increasingly benevolent. "Pick up the dignity you dropped on the floor and eat it! You know how hard I have to work to keep my possessiveness under control. Do you really want me to lock you up in the Bronze Bird Tower, Dazai?"

You don't want to keep your dignity? I do, thanks!

"...If it's you, Chii, I wouldn't exactly be against it..." His face reddened from lack of oxygen as his hands, soft as noodles, cupped his cheeks. "It might be nice to give it a try~"

"...Get lost. Act normal." I covered my forehead helplessly and suppressed the possessiveness that had successfully been stirred up. "If you want to get arrested, by all means go on your own. Don't drag me into it. I still want to be a normal person."

Dazai blinked at me, deliberately acting cute. "Ehehe~"

"Don't 'ehehe' me! Get serious!" Another cross appeared on my forehead.

P.S. This Dazai encountered the "Book" early, so he knows a few things and is rather clingy. Across eight trillion worlds, he is deeply attached to his childhood friend, the only person named Dazai who can have a childhood friend he trusts absolutely.

P.P.S. Their feelings are quite complicated. Because of this world's unusual nature, Dazai can't see the timeline of his own world: he is the only Dazai with a childhood friend. The two of them are also close, and he is extremely insecure, so he does everything he can to amplify his childhood friend's possessiveness toward him. He'd even be perfectly happy if his friend might lock him up in the Bronze Bird Tower.

P.P.P.S. The childhood friend is someone who transmigrated from the real world into a fictional one. He had an intense possessiveness both before and after transmigrating, and under the influence of his childhood friend, he's starting to lean a little toward being an S. But he can keep himself in check for the people he cares about. Our protagonist puts reason above all else, but his childhood friend, the bandage-wearing guy, still manages to make him so angry that a cross appears on his forehead.

P.P.P.P.S. Whenever the childhood friend falls asleep, he can choose whether to return to Matsushita Private School. There, he practices swordsmanship, joins the others at the school to become an Imperial Loyalist, and forms a group of his own. Teacher Shoyo once said that of everyone's sword styles, his was the fiercest, and that he was the fastest learner. He was probably the most talented of all the children learning swordsmanship, but he only ever practiced offense and never considered defense. He believes offense is the best defense. Whenever he chooses to go to that world, time stops there when he leaves. He can stay for several months, but in the crossover world of Bungo Stray Dogs, only one night passes. So Dazai is probably confused during that time, because his childhood friend grows more formidable day by day, and the bloody aura around him is impossible to suppress.

P.P.P.P.P.S. Is anyone who can be friends with Dazai Osamu really normal? Obviously not. If Dazai Osamu's ability, "No Longer Human," is the absolute negation of abilities and the bane of all supernatural powers, then his childhood friend's ability is the absolute negation of reality, "Void Reality." It can distort any reality: it can twist a skyscraper into a flower, or turn a blade of grass into a building. It can't alter abilities based on rules, but it works on abilities involving wind, fire, water, lemon bombs, and the like. It can even distort abilities that have been turned into jewels by "The Dragon's Head." In that state, it can distort any ability into something unreal.

Theme: Love means accepting and restraining yourselves for each other.