This is Viva Music, an old musical instrument store runs by the eccentric Grandpa Viva (Cheon Ho-jin), who taught young Ha Eun-gyeol (Ryeo Un) the guitar, music, and life.
After selling his guitar to Lavida Music, as Ha Eun-gyeol (Ryeo Un) opens the door and go out, this place is changed into a used bookstore that day in 1995, and he meets Ha Yi-chan (Choi Hyun-wook) who has the same name as his father.
To find her mother's first love in 1995, On Eun-yu (Seol In-ah), as Choi Se-kyung, invites No Se-bum (Lee Su-chan) to come here checking his spiceness level.
To find her mother's first love in 1995, On Eun-yu (Seol In-ah), as Choi Se-kyung, invites Kang Hyun-yul (Yoon Jae-chan) to come here checking his spiceness level.
To find her mother's first love in 1995, On Eun-yu (Seol In-ah), as Choi Se-kyung, invites Ha Yi-chan (Choi Hyun-wook) to come here checking his spiceness level.
Ha Eun-gyeol (Ryeo Un) brings Yoon Chung-ah (Shin Eun-soo) to a secret location for band practice and they find Choi Se-kyung (Seol In-ah) is already there.
The entire band, along with On Eun-yu (Seol In-ah), as Choi Se-kyung, and Yoon Chung-ah (Shin Eun-soo), meet up at this station to head to their retreat