T-sensei is one of those manga which you can just read, smile, think about your lost childhood, love your kid(if you have any) and spend more time with them. The manga is about a teacher called T-sensei who teaches(more like takes cares) of the little kids in a kindergarten. He is a cheerful chap and loves the kids dearly. The chapters deal mostly with his daily life in the kindergarten, playing with the kids, feeding them, listening to their absurd yet cute questions and just watching them enjoying their lives. It's just really cute. You just want to love the kids and cherish them. If yousuddenly feel that the manga is getting a bit realistic, you should know that the mangaka wrote the manga based on his real life experiences. There's also the running gag throughout the manga where the kids tease him about not having a girlfriend/wife. Kids these days...

Overall, T-sensei is a nice, cute manga, that definitely deserves a read. There's also an anime adaption which I'll watch soon. As an ex-teacher I loved the manga and I hope you'll love it too.