Seima Densetsu 3x3 Eyes (1993, Mega CD), Part 1

Seima Densetsu 3x3 Eyes (聖魔伝説 サザンアイズ) is a JRPG developed and published by Sega. It is based of the manga 3x3 Eyes and was only released in Japan and Korea.

3x3 Eyes is about a girl named Pai who is the last remaining Sanjiyan Unkara, immortal people with three eyes who live somewhere in Tibet. Pai wants to become a human. After befriending an archaeologist who had travelled to Tibet in search of the Sanjiyan Unkara, the archaeologist wants to help her find a way to become a human. However, the archaeologist dies due to an illness. Pai travels to Tokyo in order to find his son, Yakumo, and deliver his last letter to him. Through a series of events, Yakumo gets killed by Takuhi, Pai's demon friend. Using her third eye, Pai absorbs Yakumo's soul which heals his body, but makes him her undead servant and protector. Now Yakumo can only become human again, if Pai becomes human. On the other hand, if Pai gets killed, Yakumo will also die. Unfortunately, Pai is being chased by followers of the now-dead demon god Kaiyanwang who want to use Pai to resurrect Kaiyanwang.

The game uses a common top-down perspective, while combat is shown from two other perspectives. Commands are entered while seeing a first person view, while the attacks are shown from a side-view. Combat is turn-based. Besides the usual commands, you can also order a character to protect another.
You start off with two characters, Pai and Yakumo, in your party, but other character will join your party throughout the game.