Tatiana is a Rigelian saint who was orphaned at a young age. Raised in an orphanage run by the Church of Rigel, Tatiana joined the clergy in order to repay the church for raising her.
Tatiana discovered the unconscious body of a man washed ashore. Having suffered grievous wounds and lost most of his memories, Tatiana nursed him back to health, and during this time, the two fell in love. The man eventually draws the attention of Emperor Rudolf who admires his combat prowess, quickly ascending the ranks of the Rigelian army and becoming close to the Emperor himself. Rudolf named the man Ezekiel, Zeke for short. However, when the war between Rigel and Zofia starts, Zeke opposes it. To make matters worse, Zeke is stationed with Jerome, a man who leads his personal platoon to constantly raid nearby villages. While Zeke cannot stand his actions, the witch Nuibaba kidnapped Tatiana and holds her hostage in her villa on Fear Mountain and threatens to sacrifice her if Zeke does not comply.
Eventually, Alm's army hears of Nuibaba's abode and heads to Fear Mountain where the witch is ultimately slain. In her villa, Alm finds Tatiana and frees her from her cell. Grateful for their rescue, she asks to join the army so Zeke will stop fighting for Jerome. As the Deliverance nears Rigel Village, they encounter Jerome and Zeke's forces. Upon seeing Tatiana in Alm's forces safe and sound, Zeke immediately turns on Jerome and assists Alm in killing him. After the battle, Zeke thanks Alm for rescuing Tatiana, but initially declines his offer to join Alm's army. However, upon seeing Alm's brand, under orders of Emperor Rudolf himself, Zeke joins Alm's army and Tatiana vows to fight alongside her beloved.
After the war, Tatiana lives a happy life with Zeke. A part of her wished that Zeke would never recover his memories. Unbeknownst to her, he already had, but he kept this knowledge to himself.