In a year of 2345, there was a clan of ninja who dedicated themself to protect their homeland from evil or dark spirit behind a shadows of secrecy, lead by an alpha cyborg ninja with no face at all, he's a stoic, harsh, valiant and serious man who give all of his life to be a guardian of his own homeland named Tenkiryu, it was a normal day looking down the city from above skyscraper when suddenly he meet his brother in arms, Ryuketsu also know as the white smirk is a confident, cool, calm, relaxed, laid back, witty omega ninja who never open his mask for the entire life that hidden his face completely and has been known Tenkiryu for a whole 27 years since childhood day, Ryuketsu of course give off witty jokes to alpha ninja then in respond Tenkiryu tell him to silent and be serious but Ryuketsu just chuckles about it sayin he is always took thing too serious on something unserious sometimes which Tenkiryu had to admit it in sigh, both of them go to their seperated way and promise to meet again later in another day, 5 days later he go to ryuketsu room and noticed he seem to prepared everything in his room, tenkiryu asked why then ryuketsu chuckles and remind him that ryuketsu is in fact an omega male, tenkiryu felt a little embarrassed about it but respect ryuketsu anyway before leaving, two days later tenkiryu got a news from other ninja who is a beta that ryuketsu are acting weird lately within his room which he goes straight right in and crashed into the door then saw that ryuketsu doing a weird cat mating pose right in front of his eyes while laying on bed to showing off his wet eager vagina then tenkiryu realized...... Ryuketsu is in heat....