Born again - Sperm Racing

If a child asks, "How do you get a baby?" how should I answer?
"when mom and dad love each other?" "if they hold hands and sleep along?" "when sperm and eggs meet?"'
No, before that, do we really know exactly how a baby is born? What path do sperm swim through to the egg? Let's recall the days when we swam the path we've been through at least once, with countless competitors!

* Try to develop a tail strength
Rejuvenate your tail and beat your competitors to reach to your eggs first.

* Study a new way of swimming
Unlike others, get faster than anyone else! Don't be afraid to be a little special. You'll be the only precious child in the world.

* Complete the miscellaneous dictionary
Sex-related questions that were embarrassing to ask and answer! Clear the challenges and gain new knowledges.

* Your data is automatically stored on your portable device, so you can enjoy it safely!