that arcade room is their personal little world, it was first jeongyo's place to remember his mom and be comforted, it became the same for piyo to remember his missing bf jeongyo and be comforted by the memories (of the only time he was truly happy!) (yes ofc, with him only) moreover with piyo's piano now there, along with jeongyo's... it's a lovers graveyard guys 😭
.. today it's at 3rd position!!