No incest.
Haru has a massive brother complex and acts like a overbearing parent. He was not delighted to learn that his brothers homeroom teacher is young with no experience but due to cornerns haru faces with his little brother, he asked the homeroom teacher for help.
Asami and sarada are Co workers who also knew eachother 11 years ago, back in high school. Asami is a attractive and very straight foward person while Sarada is handsome and a player. Asami tries not to get involved with sarada since he was his first love that did not end well.
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Manga's which I liked but not enough to be my favorites. Somehow some favorites actually ended up here but they are labeled.