Nana (no-name in Japanese) has no memory of his childhood before the age of twelve, when a store owner took him in and cruelly named him. The only clues to Nanaâs past life are the burn scars on his legs and his irrational fear of fire. Enter Mitsuha, a vagabond writer, who crashes Nanaâs place at the insistence of a mutual friend. At first, Nana loathes Mitsuhaâs very existence â although he canât sleep alone, Nana doesnât like it when his new roommate climbs into bed with him, either â but eventually, he warms to Mitsuhaâs sincerity and kindness and finds happiness waking beside him. Can their budding relationship help Nana come to terms with his unknown past?