Tenkaichi!!

Trama

Tora Takei struggles to fit in during her high school debut. Unexpectedly, she time-slips into Japan's Warring States period. To return to her own time, she believes she must alter history. Disguising herself as a man, Tora encounters Mori Ranmaru, the beautiful but dangerous guard of Oda Nobunaga. She gradually discovers Ranmaru's kind and honest character, leading her to fall in love with him as her journey in the past unfolds.