The second full-length RPG created using the RPG Maker series "RPG maker unite"! Overview - The battle is a side-view turn-based command input format in the style of an old-fashioned JRPG. - The map is a 2D top-down view. You can run around a more realistic and vast field than the previous game. There are over 400 maps and 21 dungeons. There are various mechanisms and mysteries such as traps and puzzles. - A blockbuster with an open field-like world and a grand adventure with a rich storyline, with a play time of 60 hours. It is even more full-length than the previous game "Why do I have so many sisters?!" - The content has a strong comedy touch, but there are also serious scenes and puzzle-solving elements, making it a very varied game. There are also many fun conversations between the sisters, so it can be enjoyed as an ADV game. ・In addition to the unique sister skills from the previous game, this game also has a variety of unique skills, such as creating gadgets by combining materials and chemical skills by picking up chemicals to learn skills. ・Defeat powerful enemies that appear one after another with your unique skills and friends who use them. If you like challenging RPGs, you will definitely like it. ・The game has a long play time, but for busy people, a cheat play mode has been implemented. The character starts at level 90 and has an accessory that disables random encounters from the beginning. It is also recommended for those who want to enjoy the ADV elements. Story The protagonist and his sister Aina were wandering the universe on the spaceship Love Nest. However, one day they were suddenly drawn to a mysterious planet and made an emergency landing on it. The name of that planet is Sisteria. A planet with a unique (slightly unusual) culture where sisters are cherished and have a high social status. And for some reason, the protagonist and Aina were treated as residents of Sisteria from the beginning. At first, the protagonists were prepared to survive on the mysterious planet, but they don't seem too unhappy after receiving presents and even having housing provided for them. However, things can't continue like this. In order to escape from Sisteria, they go around looking for an energy source to fly their ship. However, Sisteria is a civilization at a level where light-speed space travel is not even possible, so it's difficult to find a usable energy source. The protagonists begin to wonder if they should just give up and live in Sisteria. There, they learn that a serious crisis is approaching Sisteria...