Any good recs on bl's with age gaps? maybe something similar to "Yamada To Shounen"?

Dangerous convenience store

And there is a side story about teacher and a student from manga called Doukyusei but I don't remember the name!n!!!(╯°Д °)╯╧╧ maybe u will find it in net, it's really sweet. Or maybe it wasn't a side story or just a story from this author? But I think it was a story about teacher from their school

Focus on immaturity/maturity:
https://www.mangago.zone/read-manga/mujaki_na_wanko_to_nekokaburi/

https://www.mangago.zone/read-manga/on_doorstep/

https://www.mangago.zone/read-manga/joou_to_shitateya/

https://www.mangago.zone/read-manga/saenai_oji_san_to_ore_sama_yankee_kun/

https://www.mangago.zone/read-manga/ore_to_kacho_no_shujukankei/

Mature men with older men:

https://www.mangago.zone/read-manga/koi_ga_ochitara/

https://www.mangago.zone/read-manga/midnight_rain_ctk/

GODDAM, DUDE
I LUV U THANKS FOR THE RECS <3

I read it, it's awesome

Thx! I'll search it rn <3

NO PROBLEM THOUGH I FORGOT ABOUT TONARI NI!!! IT'S THE BL I RECOMMEND THE MOST AND THE ONE THAT IMMEDIATELY CAME TO MIND WHEN I SAW YOUR COMMENT SO!!!! Check it out later if you want something short, sweet and realistic