Despite a successful trip that brings her and Arisa closer, Mari still has questions on her mind. What exactly caused Arisa's amnesia, and what if it happens again? As Mari worries, Arisa herself is busy enjoying their lovey-dovey days together in bliss! She does her best to relearn the ways of physical intimacy, and even makes a bold decision for Mari's birthday, but...there may be a surprise in store when her girlfriend takes some rather daring advice to heart!