Foreword: Abandoner is the second winner of poll for the extra review in 2004. There are actually two reviews already (1 2), but it does not hurt to give it a fresh look. Clephas recommends not to read this visual novel unless we are really hard masochists, but every visual novel reader is at least a bit of masochist for reading such long stories while normal people can't endure even director's cut movie versions. As for me, such question does not even stand - it's enough to look at the number of visual novels I played without really enjoying them. So let's start.
VNDB: https://vndb.org/v1182
Youtube: https://www.youtube.com/watch?v=7eGicIWOOlw&list=PLs4Gp5VU4Fv_qT6p_Y5f1XbwJYUu2TCCe
Youtube: https://www.youtube.com/watch?v=7eGicIWOOlw&list=PLs4Gp5VU4Fv_qT6p_Y5f1XbwJYUu2TCCe