Tomoaki Ishikawa, a craftsman at the small factory Ishikawa Precison Products, is Clover (Katsuya Kobayashi).
He is a long-time friend of Ace (Satoshi Tsumabuki) and in charge of special machinery for the team. Spade (Wataru Hyuga) take the masks for maintenance and learns how Clover met Ace and about Ace and Joker’s (Tatsuya Fujiwara) relationship.

Meanwhile, Ace meets Nagisa (Fujiko Kojima) suffering from early onset Altzheimer’s and her husband, Kenji (Mitsuomi Takahashi), and asks Joker to negotiate with them for surgery.
Since the couple weren’t wealthy, Joker was reluctant but after meeting the two he learns of a surprising fact…