So, I've been looking for the Band Versions for a lot of them. I got Me to You, You to Me by watching 1x12, but https://chordify.net/chords/jajeongeo-tan-pung-gyeong-songs/neoege-nan-na-ege-neon-2-chords this one works well for Kyung ho's part.
As for Rain and You, this is the one that I use https://tabs.ultimate-guitar.com/tab/misc-television/hospital-playlist-2-rain-and-you-chords-3759755 to play Jung seok's part.
Actually, I think Choridfy does have guitar chords for the official Mido and Falasol releases. I haven't checked on the accuracy though.