Shiro has an energetic mate, Sage, an omega, while Shiro is an alpha. They met at a park where Sage was having his first heat, Shiro had helped him through, and since then,they mated.

Everytime Sage goes into heat, he will always be clingy and needy, refusing to get out of bed. Shiro is a rather quiet alpha, he was loyal to Sage, never looked at others, never talked to others, just to Sage.

Today Sage was in heat, he was laying in bed waiting for Shiro.