Moufu Onee-san no Atatamekata
"I received my life to warm you up, blankets are a god too."
A boy who's really sensitive to cold, Minato, meets a mysterious girl, Kokoro, on his 15th birthday in winter. Kokoro says that she's an artifact spirit born to warm Minato's heart, and would do anything to make sure he is warm to the core! A very exciting manga with "Warming Action" with an older woman!! This age difference flirting comedy is finally here!!