第9話: ラムネと友人たちはレーネットの屋敷で行われる宝探しに参加する。
2021年3月7日 放送
Ramune receives a treasure hunt invitation from Reinette, a famous “mysterious” tool craftsman, and decides to go to Reinette’s mansion with Kuro. Ayame and Nico are also invited to find the treasure. But, there’s also another person who is invited whose presence suddenly makes Ramune’s face frozen. That person is Momiji, Ramune’s master! (Source: Wikipedia)