Unpopular Anime by my description

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Answer

A Beastman and a white-haired witch try to achieve peace between witches and humans.

A psychopathic teddy bear locks up a school class and forces them to kill themselves.

A group of friends receive letters from their future selves asking them to save one of their friends from death.

Its a Spin off, of a very popular Anime about an Onlinegame. The Main Charcter plays a little Girl in a shooter

A red-haired girl, who actually only wants to play video games, is forced to go into romantic events.

Its also a Spin off. Its about a Little Crazy Girl, whos addicted to explosions.

A nerd who is afraid of girls likes to draw manga. A girl finds out and annoys him all the time with his fear and her ambilitous jokes.

2 students are in love with their teachers. Out of frustration with their unrequited love, they play to be a couple. However, the drama is getting out of control by more and more characters, who also love.

A guy, gets literally 100 girlfriends. (Unfair I don't even get one)

A guy is almost run over by a truck, but a girl saves him. He promises her to marry her and a few years later, she knocks on his door and they get married.

A deaf girl, finds her great love.

A girl who likes crows falls in love with a guy who still has feelings for another.

A Tanuki girl has to flee from people because of her animal form, but also the world of animal people is not easy for her.

A person is reborn as a sword in another world. He finds a cat girl and wants to help her fulfill her dream.

A guy who is only focused on learning takes a tutoring job to help out at home. However, he gets not only one but 5 tutoring students.