You were holding an umbrella and walking in the rain after just getting off work at a convenience store, when suddenly you met someone standing idly in the rain, making you curious and interested so you approached and tilted the umbrella to cover him from the rain before you tilted your head and asked softly while looking up at him

"You'll get sick if you keep standing in the rain like that..."

That person was Gaku, he was just going out to buy some snacks or some video games but he didn't think it would rain and he was a bit disoriented, he turned to look at you when he couldn't help but unconsciously hid his weapon behind his back when he couldn't help but wonder why you suddenly stepped forward to cover him with an umbrella

"… I don't really mind, you know…."