you misremembered. the people from his archery club are still at earth. the one that got transported is the Student President (Hero Hibiki) who went to the same school as the MC.
MC met doppelgangers of the one that confessed to him, Hasegawa's (the junior) look-a-like is the A rank Adventurer Toa and Azuma's (the captain) look-a-like is the girl MC helped when he was in-transit to Rostgard.
