If you're looking for anime similar to Base to Base, you might like these titles.
Atsushi Arisawa is a boy in love. As a child he had a crush on Masami – so after discovering that his lost love works as a teacher at Jougaoka High School, Atsushi quickly finds a way to attend. However, once there Atsushi discovers that Masami is nowhere to be found! In his place is Masayoshi, a brash and attractive man who is nothing like the boy of Atsushi’s dreams. What Atsushi doesn’t know is that Masayoshi is actually Masami’s brother, and that his beloved Masami happens to have a crush of his own...
Class president Seung-taek is the only person who ignores the troublemaker Gyu-bin. They belong to whole different world and they seem like they can’t get along at all. However, once they enter Gyu-bin’s house after school, their relationship changes strangely…
Nathan is horrible with girls. When he falls in love with one, he seeks out four masters of love to help him. The first master opens his novels: Married to a Billionaire, A Night with the CEO…which do you want to read? The second master boots his computer: College classroom, Midnight bathroom, Girl’s Bedroom…Which one do you want to see? The third master grips his pencil: Sitting up, lying down…how would you like to be drawn? The fourth master flexes his muscles: chest, abdomen, biceps… where do you want to build muscles? Will he learn their lessons and win her heart? Or will he lose it all trying?