4 koma anthology.

A gate to another dimension has burst open, and from it emerge gigantic invincible creatures that threaten all of humanity. Earth's only defense is a mysterious group of warriors who have co-opted the alien technology in order to fight back! (Source: VIZ Media)

Yukimaru and his friends investigate the Shiroyashiki as they look for their missing friends and run into the strange Room 303.

First precursor to what would later become World Trigger.

The new "little brother" joining the Hino family is in fact… a dog!? Not only that, he can walk upright and talk!! A cute, oddball, heartful doggy comedy!! (Source: Shounen Jump)

Creatures from another dimension have invaded Earth! Earth weapons are useless against these 'Neighbors,' but some scientists have created new weapons based on the enemy's technology. Using these weapons, humans struggle to defend themselves from the invaders. The head of the central base has sent the ace soldier, Yuuichi Jin, to help out the failing Base 7, and rescue his son Yuiga Tadashi, who is the leader there. Unfortunately, the problem with Base 7 is, in fact, Yuiga Tadashi. He's a terrible leader who cares for nothing but his own reputation and believes that being the central base leader's son allows him to do whatever he wants. Will Jin be able to fix this terrible situation? (Source: MangaHelpers)

Lilienthal is a dog that's smarter than average. He lives with Tetsuko and Hino. Tetsuko and Hino's parents are scientists and often not at home. One day a strange gentleman robber comes to their house and kidnaps Tetsuko... (Mangahelpers)