Onegai Teacher

Onegai☆Teacher follows Kei Kusanagi, who spots a mysterious glowing woman by a lake and soon learns that she is Mizuho Kazami, an officer of the Galaxy Federation working at his school as a teacher. The shock deepens when Kei realizes that the woman he has fallen for is both an alien and his instructor, turning an already awkward crush into a quiet, impossible romance. As their relationship slowly becomes more sincere, the pair are forced to hide what they feel from everyone around them. When the school principal discovers the situation, the only way to keep the scandal from exploding is to make it disappear by getting married. Suddenly, Kei and Mizuho are living as secret newlyweds, trying to balance ordinary school life with the demands of secrecy, the risk of exposure, and the attention of the Galaxy Federation. Blending gentle science-fiction comedy with romantic tension, Onegai☆Teacher frames its story around the fragile connection between a student and the alien teacher who changes his life. The result is a warm, understated series about trust, embarrassment, and the effort it takes to protect a relationship that should not exist in the first place.