My Name Is Hijikata Toshizo!!!

"Mom, do you really not need any other disguise?" Oceannus looked at his mother in puzzlement.

"Don't worry. I wrapped myself in my Tidal Vortex. If someone senses me from the outside in, they'd probably only perceive me as an extremely, extremely ordinary Servant." Doris chuckled.

"Where did you even learn all this weird stuff?" Oceannus scratched his head with a baffled expression.

"Don't underestimate your mother. This Tidal Vortex divine art is the result of tens of thousands of years of research." Doris shot a glare at Oceannus, who was sitting on the sea beside her. "When I first fused your Divine Core, I understood what you meant, but I was actually still very confused. Later, your cousin, the god Hermes, brought me a specific guide for releasing divine power. Only then did I truly begin to use the power of this Divine Core."

"Surprisingly, my origin is the same as yours: 'sea,' rather than a conventional origin. That's why I've found it fairly easy to apply."

"And then, I developed a system unique to myself. That is—"

Bzzzz—

A rapidly spinning blue cone appeared in Doris's palm. Looking closely, one would discover that it was—

"Seawater?" Oceannus had a sharp eye. "And seawater enhanced by a high concentration of divine power. Come to think of it, when you sent Hector back to the Throne of Heroes, you seemed to use this, didn't you?"

Doris nodded. "A simulated ocean current spinning at ultra-high speed, empowered and sealed by divine power—that is my 'Tidal Vortex.'"

"Even so, its destructive power is still rather limited. Back then, that child named Hector was more willing to give up resisting, which was why he was so easily sent back to the Throne." Doris controlled the tiny Tidal Vortex as it gradually expanded. "My