Akiroro's activites

This is a BL historical manhwa, the MC Getting into the story? Basically, the MC is a teacher and he has two students, a girl and a boy, then he takes in an abandoned child as his student, a boy, a little one, and he knows that his new student will become the future demon king, that's why He tries to stop him, and the lil boy grow fond of him, and the MC who has transmigrated has a lot of knowledge about potions and medicines.Btw, there's also an additional scene where the teacher is kidnapped, and the female student studies with another teacher... Smth like that.

I read this a long time ago, i guess it has ended already.
It's a bnw manhwa (black and white) aka colorless. And it has 2 seme. Like.. similar to "you're my world" One seme is rich and the other is similar to the seme in banana fish.
I don't remember the main male lead but one spesific scene.. the rich seme let uke go with the other seme to run away from something and.. the uke sad..?
If i am right, this one is involved with.. gangster? The seme? Idk.
Tell me the title if you find it, Thank You. ╥﹏╥

At first, I was a bit angry with the MC at the beginning and middle of the story because it's true that he's no longer a high school student and he knows that but he trusts the strange stranger he meets more than his own best friend, Even though he knew how serious what he was experiencing was, he chose to almost commit su!c!de instead of seeking help from his own friend.. (I don't hate ml)
But it turns out from his best friend's POV, at the latest few chapters, he liked him from the start and tried to approach him in the wrong way and It's pretty cruel to be honest.
I was really shocked. But well..
And! Tbh, there was a bit too much smut i guess-. So it's like... plot 1-2 chapters, then smut, plot 1-2 more chapters, smut again. But as long as they're happy. It's Okay.
[ Pure Opinion ]
╮(￣▽￣)╭

I'm not part of reaperscans, so of course it's not my work...

Please Help me find a manhwa that kinda similiar to this but better (i guess)
That's... like... a manhwa where the MC is also kidnapped in a room, a room but complete, handsome and calm, the ml is also handsome ofc, the MC is like.. a college student?, if I'm not mistaken it's already over and They have a happy ending? Maybe, at least the MC can somehow soften up this ML so he's not too restrained.
Even the ML thought the MC had Stockholm syndrome when he didn't To the point where this rich ml brought a personal doctor to check MC. Add some information too, it seems like the ML kidnapped him out of revenge? He thought the MC had left him when he was still a child.
Let's use the magical power of readers