Just guitar is fine

This song, watashi wa anata ga ii no desu, by Abe Mao, is one of my very favorites. This is one example of what simple guitar can be enough for a good song. Don't need much else. And the vocal, she, maybe barely 20 years old, can write such good songs despite her young age! Sometimes I wish my mom could have bought me a guitar for my like 6th birthday or something. Then I will be super good by now :)
She is singing about some crush she has and that she wants to always see his smile and have him by her side. I couldn't help it but go awww... teenagers can be so cute sometimes~