Let's start jamming Ren - 嫌いになれない chords, familiarize yourself with these chords - C#, G#, F#, C# and N in sequence. I suggest starting at a calm pace of 35 BPM, and as you gain confidence, approach the song's BPM of 70. Adjust the capo based on your vocal range and chord preference, keeping the song's key of C# Minor in mind.