If you're looking for anime similar to Penguin Musume Heart, you might like these titles. All recommendations are made by Anime-Planet users like you!
Yuuto Ayase is not interested in girls - if his two housemates are anything to go by, girls are loud, brazen slobs that are best left alone. However, when Yuuto accidentally discovers an important secret of his school’s most popular female, Haruka Nogizaka, the two become bound in a budding friendship. All too soon, Yuuto discovers that, despite her flawless appearance, Haruka is clumsy, naive, and a closet otaku... and he just might be falling for her.
Ryouta is a typical elementary school boy in class 5-2. He likes hanging out with his friends, he plays guitar on his broom instead of cleaning the classroom and he’s more interested in whose Superball bounces the highest than seeing a girl’s panties or sneaking a peek at a dirty magazine. However Ryouta also has the unfortunate luck of often being caught in the most seemingly-perverted situations at the worst possible times. Still, amidst becoming the guru of the turn-on of a collarbone, Ryouta continues to live a normal day-to-day life; that is, as normal a life as a tormented pseudo-perverted schoolboy can!
School is the main scenery here. Both go though out the school's students daily lives and the friendships they share. They are both funny and ok animes and if you liked one you will most likely the other. Main difference is that Kyou no Go no Ni has one scene of ecchi each episode, while Penguin Musume Heart has a lot more with fan service.
Naeko and Kousuke Fujiwara have just been given a gift from their grandfather: the mess of a mansion they live in will now be cared for by two capable maids – Fubiki, a beauty that appeals to Kousuke’s fetish; and Kogarashi, a huge, strong man who will perform his maid duties to his fullest! What the two don’t know is that they are the last in line for their family’s inheritance, and these two “maids” have been hired to protect them. For Kousuke, this new life is a dream come true; but for Naeko, her mammoth, gravity-defying breasts will never be safe from Kogarashi or any other male’s antics again!
Kamen no Maid Guy and Penguin Musume have a few things in common. For starters, they both feature a ditzy female protagonist with ample sized boobies. Also Sebastian somewhat reminds me of Kogarashi, he provides perfect service but sometimes makes the female characters feel uncomfortable because of his bizarre actions, though Sebastian isn't featured nearly as much in Penguin Musume as Kogarashi is in Kamen. Both shows are also action comedies that lean a little heavy on the comedy side.
The ordinary becomes extraordinary, as our protagonist Mahiro Yasaka – an average high school student – suddenly encounters a Nyarlathotep: a formless Cthulhu deity of chaos, who decides to take form as a silver-haired human-like alien. This Nyarlathotep – aptly named Nyarko – may seem like a normal gal, but there’s much more to her than meets the eye! In their encounters together, she ends up saving Mahiro's life, inextricably tying their lives together…
Nyarko is basically Penguin Musume with CTHULHU mythos. Both are heavily comedic and nonsensical, a lot characters behave similarly (we have the hyper otaku mc, the jealous girl who chases after another girl, the trap, the voice of reason etc.), both do have a shade of ecchi, but most importantly both are filled to the brim with shout-outs to anime, games and japanese trends.
Only difference is that Nyarko has aliens, but given how unrealistic the settings are, it doesn't really matter. So if you're looking for a weird and hilarious trip full of references, look no further.