Hello, Good-bye

Hello, Good-bye is romance visual novel in which the player assumes the role of Kaito Toubu. Much of its gameplay is spent on reading the story's narrative and dialogue. The text in the game is accompanied by character sprites, which represent who Kaito is talking to, over background art. Throughout the game, the player encounters CG artwork at certain points in the story, which take the place of the background art and character sprites. Hello, Good-bye follows a branching plot line with multiple endings, and depending on the decisions that the player makes during the game, the plot will progress in alternative directions.

There are four main plot lines that the player will have the chance to experience, one for each of the four heroines: May Yukishiro, Suguri Saotome, Natsume Rindo, and Koharu Hiiragi. Throughout gameplay, the player is given multiple options to choose from, and text progression pauses at these points until a choice is made. Some decisions can lead the game to end prematurely, which offers an alternative ending to the plot. To view all plot lines in their entirety, the player will have to replay the game multiple times and choose different choices to further the plot in an alternate direction.

In Japan, there are two conflicting factions, The United Provinces of Japan (日本合州国) in the west and The Federation of Japan (日本連邦) in the east. Despite them still opposing each other, they have made a temporary suspension of fighting known as The Morino Ceasefire Treaty (守乃特別区). This treaty has existed for at least a century, and many have decided to worship it. The story is set at the Cathedral School (天主堂学院), a catholic school located on an island that provides education from kindergarten to university. Sister Therese teaches history there.

Kaito Toubu (東武 カイト, Toubu Kaito)

Hello, Good-bye is Lump of Sugar's sixth game. The scenario was written by Tetsujin. Character design and art direction were headed by Fumitake Moekibara. Hello, Good-bye's music was composed by Shigenobu Ōkawa and Yūta Yamaguchi.

The videos featured in the game were produced by RMG, and the animation in the game was produced by Silver Link. A trial edition, rated for all ages, was released by Lump of Sugar in Japan on October 16, 2010. The full, adult game was released on December 17, 2010, for Windows as a limited-edition version. The trial and limited edition are fully voiced.

Hello, Good-bye was the sixth best selling visual novel in 2010 on Getchu, and was the number one best selling visual novel of December 2010 sold on Getchu. In January 2011, the ranking lowered to 20th place. Hello, Good-bye was ranked first as the most pre-ordered visual novel game in Japan in November 2010. com awarded Hello, Good-bye first place for the visual novel with the best quality movie-making in 2010.

Moe Game Award gave Hello, Good-bye silver (second place) for the best visual novel song in 2011, which was "Goodbye Crisis" sung by Masami Okui, losing only to Grisaia no Kajitsu which achieved gold. On Hello, Good-bye's official website, a popularity poll was held for the characters. May Yukishiro came in fourth place with 2,092 votes, Natsume Rindo came in third place with 2,179 votes, Suguri Saotome came in second place with 2,306 votes, and Koharu Hiiragi came in first place with 2,317 votes. Koharu then received a special wallpaper as a prize.