A Japanese singer who can play the guitar like YUI.

A lot. I wonder if the landlord wants a male singer or a female singer. Female singers usually do, because most female singers in Japan are still very talented. For example: Aiko, the guitarist in D.A.I (do as infinity): Daduliang. It seems that Ai Otsuka will do the same.

There are also Japanese VR bands. As long as it is a Japanese band, the lead voice should also play the guitar.

I think Ya MIYAVI is the best male guitar singer in Japan. He has been to Beijing and Shanghai to hold his own concerts.

Maybe Mika Nakashima will, too, because the Japanese like playing guitar very much. In this respect, Japanese singers should be similar. Because there is a famous heavy metal rock in Japan, any rock band should be able to play the guitar.

I recommend several Japanese bands: VIVID, Sugar, FLOW and Alice Nine.

If the landlord still doesn't understand, you can search for Japanese rock bands in Baidu. There are many singers who can play guitar.