Koisuru Asteroid Episode 1 English Subbed Episode Title:Their Promise.Episode Description:A long time ago, Mira Konohata befriends a boy and makes a promise to discover an asteroid together. Upon entering high school, Mira discovers that the astronomy club has been merged with the geology club to form the earth sciences club. Upon checking the club out and meeting its members, Mira reunites with the boy she met back, Ao Manaka, who is revealed to be a girl. As Mira and Ao struggle to talk to each other in the same way they used to, Ao gets some advice from Mira's friend Moe "Suzu" Suzuya, helping them to have a discussion about Mercury later that night. With the club needing activities to increase their budget, Mai Inose suggests that they produce a newsletter that covers both astronomy and geology.