Umika is excited that a famous French jewelry designer is visiting Japan. Kairi plans to steal the pendant on her necklace, which is likely a part of the Lupin Collection, but she brings up sour memories of his brother. The Patranger create a fake pendant in order to catch the Ganglar in a trap.

Kairi is bummed after Blue and Yellow failed to recover a collection piece in time, but Keiichirou unknowingly gives him a tip that would lead to an alternate way in getting his brother back; Umika has a discussion with Sakuya, which reveals a new detail about the previous battle.