Kohaku is a character from the light novel and anime series "In Another World With My Smartphone". She is a companion and a contracted beast of Touya on his journey. Kohaku is also one of the Four Heavenly Beasts, a group of powerful magical beasts that protect and serve the people of the world.

Kohaku was once known as The White Monarch, a title that reflects her status as the leader of the Magical Beasts. She is a powerful and intelligent creature, with incredible strength and magical abilities. Kohaku is fiercely loyal to Touya and will do anything to protect him and his friends.

Despite her fearsome reputation, Kohaku is also known for her playful and mischievous personality. She enjoys teasing Touya and the others, and often gets into trouble because of her love of mischief. However, when the situation calls for it, Kohaku can be serious and focused, and is always ready to fight for what she believes in.

Kohaku's role in the series is primarily as a companion and protector for Touya and his friends. She is a valuable asset in battles, and her magical abilities are often crucial in defeating powerful enemies. Kohaku's relationship with Touya is also an important aspect of her character, as she is deeply devoted to him and will go to great lengths to keep him safe.