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Aliasesハローグッバイ, HGB
Play timeMedium (24h42m from 18 votes)
DeveloperLump of Sugar
PublishersLump of Sugar
God of peace
LinksWikipedia (en), Wikipedia (ja), Wikidata, VNStat
Shops» US$ 29.95 @ MangaGamer


"Toubu Kaito"

That is the fake name assumed by a young military officer from the United Provinces of Japan. He has been tasked with infiltrating Tenshudo Academy, located in Special District Morino, impersonating a transfer student.

He is to cast aside his former identity, and 'become' Toubu Kaito.

Special District Morino, also known as the neutral zone, is a region of historical significance, and right now, it is the one area which 'both Japans' have their eyes on most.

Upon first entering Morino, Kaito decides to walk around and familiarize himself with his new home. After visiting many different places, he then ends up in a park harboring a memorial statue that honors a certain peace treaty. Kaito wanders a little too far, and finds a remote area where he is presented with a vast flower bed that covers every inch on the ground.

And he is not alone. There is a single girl there, tending to the flowers.

"Why hello there. How do you do, sir. Ah, I suppose I ought to say 'good evening' considering the time of day. " The girl gently smiles at Kaito, and asks for his name.

"Toubu Kaito's my name... at least, it will be during my stay here."

He responds to her, quickly, and in doing so, inadvertently reveals his 'secret.'

Little did Kaito know, but this slight 'slip of the tongue' would be the single action to put an end to his hapless fate. One tiny mistake, and his life forever changed...

"If it was a mistake that came about through love, then I think there can be nothing more wonderful than that."

[From the official site]

Achievements 3.0 Backlog Jump 3.0 Father Support Character 3.0 Few Choices 3.0 High School Student Heroine 3.0 Transfer Student Protagonist 3.0 Varied Title Screens 3.0 Future ForecastingS 2.8 Orphan Protagonist 2.8 ADV 2.8 Male Protagonist 2.8 Soldier Protagonist 2.8 Built-in Encyclopedia 2.7 Spy Protagonist 2.7 Branching Plot 2.7 Proactive Protagonist 2.7 ReunionS 2.7 Spy Heroine 2.7 Multiple Songs 2.6 Politics 2.6 White Haired Protagonist 2.6 Cafe 2.5 DelusionS 2.5 Fighting Protagonist 2.5 Flashback 2.5 Only Virgin Heroines 2.5 Orphan HeroineS 2.5 Protagonist's Kouhai as a Heroine 2.5 Sex with Protagonist Only 2.5 Tomboy Heroine 2.5 Transfer Student Heroine 2.5 Romance 2.4 Secret Identity 2.4 Soldier HeroineS 2.4 Deredere HeroineS 2.3 Imouto-type Heroine 2.3 Rebellion 2.3 Sprite Viewer 2.3 Twin Tail Heroine 2.3 AmnesiaS 2.3 Multiple Endings 2.3 Defloration 2.2 Nun Support Character 2.2 White Haired Heroine 2.2 Ojousama HeroineS 2.2 Perverted Friend 2.2 Super Deformed CG's 2.2 TerrorismS 2.2 Friendship 2.2 Modern Day Setting in a Fictional World 2.1 Battle of Wits 2.0 BetrayalS 2.0 Brocon Heroine 2.0 Drama 2.0 Enforced Playing Order 2.0 High School Student Protagonist 2.0 Infodumping 2.0 Late Sexual Content 2.0 Low Sexual Content 2.0 Modern Tsundere Heroine 2.0 Outdoor Sex 2.0 Playtime Counter 2.0 Protagonist with Psychological Problems 2.0 Student Heroine 2.0 Under the Same RoofS 2.0 Unlockable Routes 2.0 Loli Heroine 1.9 Student Protagonist 1.9 Butler Support CharacterS 1.8 Food Discussions 1.8 Foolish Friend 1.8 Pistol CombatS 1.8 School Festival 1.8 Doggy Style 1.8 Energetic Heroine 1.8 Other Perspectives 1.8 Protagonist with a Face 1.8 High School 1.7 Cunnilingus 1.7 Childhood PromiseS 1.5 Protagonist's Childhood Friend as a HeroineS 1.5 Unlockable Choices 1.5 WarS 1.5 Combat with Automatic FirearmsS 1.4 Discrimination 1.3 Hidden Object Game 1.3 Bodyguard ProtagonistS 1.2 Sexual Content 1.2 Sniper HeroineS 1.2 Personal Armed CombatS 1.2 Brief NVL Scenes 1.0 Fast Mini-games 1.0 Life and Death Drama 1.0 Mystery 1.0 Protagonist with a Sprite 1.0 Sex in Public Places 1.0 Sixty-nine 1.0 No Common Sense Heroine 0.7 Only Good Endings 0.7 Lots of Event CGs 0.5 Unlockable Hero(ine) 0.5


Japanese (4)
2010-10-16All agesHello,good-bye - Web Trial Edition
2010-12-1718+Hello,good-bye - First Press Limited Edition
2015-12-0418+Hello,good-bye - Download Edition
2019-04-2618+Lump of Sugar Collection "Hello,good-bye"
Chinese (1)
2012-03-06All agesHello,good-bye - Trial Edition (unofficial patch)
English (4)
2019-01-2518+Hello, Goodbye - Standard Edition
2019-01-2518+Hello, Goodbye - Deluxe Edition
2019-04-18All agesHello, Goodbye - All-ages Edition
2019-04-1818+Hello, Goodbye - 18+ Patch (patch)
Russian (1)
TBA18+Hello,good-bye (unofficial patch)


Full character list

Character summary

Toubu KaitoProtagonist
Hiiragi KoharuMain character
Voiced by Anzu Mitsu
Rindou NatsumeMain character
Voiced by Koyuki
Saotome SuguriMain character
Voiced by Kujou Shino
Yukishiro MayMain character
Voiced by Airi
Iwashimizu MunenoriSide character
Kiritake ShidouSide character
Voiced by Kurose Taka
Sister ThereseSide character
Voiced by Nakase Hina

User stats

Vote stats
750 votes total, average 7.15 (good)
Recent votes(show all)
2 reviews »


Popularity: ranked #258 with a score of 6.43

Bayesian rating: ranked #810 with a rating of 7.08


Hello,good-bye - First Press Limited Edition

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Hello, Goodbye - Standard Edition

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