On her way to school one morning, a boy from another school gives Himeno a love letter. The sudden turn of events has Himeno bewildered, and behind her bewilderment likes a traumatic memory from her childhood. What happened in Himeno's past? Himeno and Nozomi have come to Kyoko's house for a study meeting. As they're working, something strange happens...
or vehicles used by 
Antarctican snake people,
أو مركبات مستخدمة من
،قِبل الأفاعي البشريّة القطب جنوبيّة
oder Fortbewegungsmittel der antarktischen Schlangenmenschen?
o vehículos usados por los antárticos.
o vehículos usados por los antárticos.
J’ai aussi entendu que ce serait
des véhicules de serpentoïdes.
o veicoli usati dagli antartidiani, i rettiloidi,
ou veículos usados
por pessoas-cobra antárticas,
или корабли змеелюдей из Антарктиды.