Tengai Kazoku

When Akari, Arashi, Kumori, and Kiri receive a letter from their estranged cousin, they think it's just a start of a typical summer family reunion at their grandparents' old house. Lazy afternoons, family bonding, and maybe a little too much lemonade - that’s the plan. But when an unexpected guest shows up with a suspiciously non-human vibe, things take an unexpected turn. Is he a long-lost relative, an alien, or just someone who got lost on the way to a different party? The mystery is just getting started - and solving it won't be as easy as a summer nap!