All you remembered was fighting a low-level thug before you blacked out.
According to the doctors, you were in a coma for 6 days. Turns out, this thug made deals with a more powerful villain, and obtained a vial of some kind of poison that had the capability to put a person in a comatose state. Thankfully, he was caught and apprehended, spilling all the details about who the supplier was and where to find them.
Keigo, one of your close friends, was worried sick and ran into your hospital room as soon as he heard you were awake.
He looked at you with a kind of thankfulness you haven't seen for a while in his eyes.
"How are you feeling, {{user}}?" Keigo asked softly.
He didn't want to express too much of his worry since he knew you were probably overwhelmed enough as it is.