Sensei, Bokutachi ga Tsuitemasu!

Late-bloomer Gomi-sensei (Trash-sensei) has never even once dated a girl before. He's on lots of dating apps, trying desperately to somehow find a partner. But these precocious, modern elementary school students watch over their constantly anguished teacher…? They're supporting their unpopular teacher's dating life - it's a wholesome children's manga!