Kou Sennen is my best friend.

Photochemistry is a branch of science that studies how chemical reactions proceed under the influence of light.

The photoelectric effect is a phenomenon where a material emits electrons after absorbing light.

Sirius is the brightest star in the night sky.

This ramen is a bowlful, I'm worried if I can finish it.

I am surprised at this situation like a cataclysm.

Ame-no-Murakumo-no-Tsurugi is the original name of the Sword of Kusanagi.

Daikokuten is a guardian deity in Buddhism, symbolizing prosperity and thriving business.

Marshal Tianpeng is a legendary character in China.

I want to learn about the history of the Taiping Heavenly Kingdom.