Apparently, Imaizumi's Place is a Gal Hangout · The Birthday Surprise Episode 3 / 8
Imaizumi enjoys his intimate relationship with Hamasaki and her friends, but he begins to fear that his happiness is too good to last. When the girls suddenly stop visiting him to coordinate a surprise for his upcoming birthday, Imaizumi is left feeling lonely and anxious. The tension culminates in a wild, all-night celebration once the girls finally reunite with him, though the morning brings a new risk when his family arrives unexpectedly.
