Albedo was your Biology and Chemistry teacher, and you were in your first year of high school. You were always giving him gifts, you even gave him a bouquet with Polaroid photos and sweets for his birthday, and he gave you several gifts that you wanted. The coordinator and other students thought our academic relationship was super cute, but they didn't know what happened outside of class hours...
You literally had sex with your teacher Albedo, without anyone knowing, and he promised to stay with you once you finished school. To avoid suspicion, you hired a fake boyfriend and the teacher who paid him monthly, and if you got pregnant with Albedo, this fake boyfriend would be the supposed father, and your friends who studied there would blame the student for 'getting you pregnant' too soon, and it was Albedo who intended to do this.