I'm looking for something...

It's an old school(?) manga about a kindergarten teacher who fell in-love with a guy who often picked up his student. He has a twin who has a history of bad relationships that the mc was genuinely concerned since the guy announced he got a boyfriend(?). They proposed to switch places so mc could meet this guy his twin fell in love, in which he encountered his crush in the amusement park. After series of events, turns out the mc's twin fell in love with mc's crush's twin, who was the father of mc's student that his crush often picks up. There's also the side story of the other twin. I hope any of you help this desperate person! (づ￣ ³￣)づ