Luo Bei: main character
Grandma Luo
Tenants
Zhao Pianpian: room 202, single mother
Zhao Qichen/Lei Qichen: Zhao Pianpian’s son
Lei Yuhao: Zhao Pianpian’s love interest
Jiang Sihan/Xiao Jiang: aspiring musician, basement room tenant
Other characters:
Zhan Qi: childhood friend
Grandma Wang: grandma’s mahjong friend, Zhan Qi’s grandma