Ashita wo Kureta Kimi ni, Hikari no Love Letter wo

Mizuki, who has an unrequited crush on her best friend's boyfriend, one day picks up a love letter addressed to herself in "Kokoro" in her high school library.

• find

"I've been wondering about you for a long time, and I wanted to talk to you even if it's just once."

The sender's name is "Sato", but I have no idea. you

Who the hell is that――?

At first, Mizuki was suspicious, but as they continued to exchange letters, "Sato-kun" gradually changed into a comfortable existence.

What is the shocking fact that Mizuki, who is searching for the true identity of "Sato-kun," eventually learns?
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