Shingetsutan Tsukihime, Mahouka Koukou no Rettousei Recommendations
IF Shiki has close-range "death" attack, Tatsuya Shiba has the long-range version of it.
However, the relationship between characters is the main attraction of both series, not the action. Reading the Tatsuya x Miyuki scenes gives me the same warm and relax feeling as when i read the Shiki x Acruied or Shiki x Akiha scenes.
The main characer in MknR - Tatsuya is a family man, just like Shiki. He will do what he must to keep his love one from harm.
Even if he has to "break the law"!!!
Fun fact: "Shiki" and "Shiba" both means "death".