Phantom Siita to release ‘Sweet Pea’ as anime ending theme

Phantom Siita, the idol group produced by Ado, will release the digital single ‘Sweet Pea’ on October 11, 2026.

The song was written specifically for the second season of the TV anime ‘Hotel Inhumans,’ which began broadcasting on October 4. The track was composed by Mirai Nakamura of the band Co shu Nie. It is described as a poignant yet warm song depicting love that remains in one's heart even after loss, focusing on the belief in connections with distant others.

‘Hotel Inhumans’ is based on the manga by Ao Tajima serialized on Shogakukan’s Sunday Webry app. The series follows a human drama set in a hotel exclusively for assassins, centered on the interactions between concierges and their clients.