Tenya(天丼てんや) Harajyuku shop is quite famous from foreigners now because Justin Bieber and Selena Gomez went there 6 years ago so more than 80% of customers are foreigners and it was introduced by a Japanese television program.
Tenya can eat Tempura and japanese soba noodle and they provide English,Korean and Chinese menus.
ENGLISH | TENDON TENYA
Harajuku Store | TOKYO LOCATIONS | TENDON TENYA
If you do not make a line with other people, you can eat other shop in Tokyo as well because Tenya is a chain store so every shops are same taste.
TOKYO LOCATIONS | TENDON TENYA