Adult PC Game: B.E.S.T Ep.5.1 by Dolyla Win/Mac/Lite Archive

Our Hero thinks he's going to the USA for a 6 month intensive language program.
But the truth is that he has been selected as one of the 100 participants in a new program launched by a mysterious man, Mr. Orushi. The enigmatic program will force the candidates through tests and trials with one overriding goal: to select the B.E.S.T student. At every stage of the testing challenges, one or more students will be eliminated until only one remains. Careful strategy, effective teamwork, and building relationships will be all be vital for success during the game. Your choices will decide if he succeeds or fails. Can you guide him to be the first B.E.S.T student?