Tantei Jimusho no Kainushi-sama

At the Sako Detective Agency works the reliable Rou Nakamura. Despite his rugged looks, intimidating glares and pink hair, animals seem to adore him, making him the perfect candidate for finding lost pets. Rou is also in love with his boss, Detective Fumika Sako. When he isn't helping Fumika out on a case, Rou is always on the lookout for a chance to sneak in a kiss!

(Source: Kuma)

Note: Includes one extra chapter.