Ditzy HACKADOLLs Nos. 1, 2, and 3 are seeking to debut as official Personal Entertainment AIs. However, since these girls are so unbelievably ditzy they are at a loss for words, they end up using their own physical bodies to take on human job requests and directly improve the efficiency of their clients.

A certain idol agency's producer grabbed too many jobs which overlapped at the same time. With the front that they are trying to improve his efficiency to advance his career, the HACKADOLLs aim to debut as idols on stage at an event held in an underground theater.

The fate of a company rests on one huge project, but the deadline is nearing and the budget is insufficient. As the bugs pile up, their making this new operating system's launch date seems all but impossible. If this project should fail, it might cause the company to go under — so the HACKADOLLs are inputted into the system to assist…

No. 2 ends up having to improve the efficiency of a client who's a virgin, and ends up feeling something more like heartthrobs for this desperate~yet~pure virgin. Along with the sunset and a moody atmosphere, the couple's feelings start to swell, advancing to the next level…

The newest model HACKADOLL No. 4 finally rolls out against the one-dimensional, non-progressing HACKADOLLs. The overspecced overly specific No. 4 now begins to bolster up the ditzy Hackadolls?!

A serious bug shows up in the cyberworld, and the HACKADOLLs were tossed into confusion. Wounds were engraved on to their hands and feet, and even a valuable you-know-what has been lost. Amongst all that, a summoning call rings, and No. 3, who looks relatively decent, has to go improve efficiency all alone…

The HACKADOLLs, faced with improving the efficiency of a strong anime-production assistant who can sleep anywhere, were writing, seeing the gap between ideals and reality. Until the white box (shirobako) of KUROBAKO is made––until everything is submitted, they must continue to work their hands to the bone.

The Hackadolls act as tour guides for a "foreign girl" who doesn't speak their language. With strange gestures, the Hackadolls take her to the best spots. But there seems to be one place in particular this girl must go to…

In order to rescue someone immersed in an online game, the HACKADOLLs dive into the game world. Adventuring through a vast field, meeting comrades, and finding out what family love is, one man returns to real life.

The HackaDolls have arrived at a pension in the snowy mountains that has a hot springs bath. They spend a time of relaxation of both mind and body with their first hot springs experience. But an ominous warning note shows up at the pension, and the situation turns in a direction that's completely unexpected.

The HackaDolls start researching in order to give the best present ever at a voice actor's birthday event. On the actual day, the client tries to directly hand over the present that was obtained after much hardship...

A refreshing Sunday morning at the end of a weekend. They are given the task to make the idols of children, "magical girls," more efficient, but in this town both the magical girls and the monster men were different in all sorts of ways, giving the HackaDolls a very hard time.

At Comiket, the Hacka Dolls discover their true power.