A girl with tuning fork is shown singing on the bridge while reminiscing her past. At the library, Kyotaro feels hesitant to give away his peaceful room and time to others. Later, the club members pick up the trash around the school area to make their name known. Suzuki Kana from school cafeteria, Appllio, agrees to take part in the activity. Kyotaro helps the girl (previously seen on the bridge), Senri Misono, to get 500-yen coin stuck under the vending machine...