Rin is sexually interested in her teacher and tries to get him to feel the same way; however, nothing ever happens in the anime or manga between them. The show deals with incest between Reji and his cousin, also their is a scene where a grown women puts a tampon in one of the 4th grade girls and the girl moans a little when she gets the tampon put in. Lastly Rin who is in 4th grade at the time goes to her sleeping teacher naked while he is asleep and positions herself near his crotch, while sleeping the teacher rubs her vagina with his finger, the girl moans quietly, then his crotch gets closer to Rin's she feels how big his genitals are and her eyes burst wide open. She tells her friend later that the teachers genitals will never fit in her.
