Upon receiving an invitation to a treasure hunt from the famous mysterious item artist Reinette, Ramune and Kuro visit Reinette's mansion. There they encounter Ayame and Nico, who have also come to participate in the treasure hunt. However, when Ramune sees the man with them, his expression freezes, and he attempts to flee the scene. That man is Ramune's master Momiji!
Which means piercing its heart would 
pierce mine at the same time.
.ما يعني أنّ طعن قلبها سيطعن قلبي بدوره
Wenn ich also ihr Herz
mit meinem Schwert durchbohrte …
En ese caso, atravesaríamos
nuestros pechos al mismo tiempo.
Dans ce cas,
si je lui transperce le cœur,
Il che vuol dire che se la colpisco al cuore,
 lei trafiggerà il mio.
Então, quando eu acertar o coração
da armadura, eu também...
А значит, если я проткну мечом сердце
доспехов, то и они проткнут моё.